Machine for shaping shoe uppers



July 16, 1935. E. A. HOLMGREN 2,008,072

MACHINE FOR SHAPING SHOE UPPERS Filed Aug. 15, 1934 5 Sheets-Sheet 1 A/VE/V TUE.

E. A. HOLMGREN Filed 13, 1934 MACHINE FOR SHAPING SHOE UPPERS 5Shets-Sheet 2 MKw July-16, 1935. E. A. HOLMGREN 2,008,072

MACHINE FOR SHAPING SHOE UPPERS Filed Aug. 13, 1934 5 Sheets-Sheet 3 F1g. ll.

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y 1935. E. A. HOLMGREN MACHINE FOR SHAPING SHOE UPPERS Filed Aug. 13,1934 5 Sheets-Sheet 4 [.Tfi'fjjj; 313:;

WvE/v TUEL y 6, 1935. E. A. HOLMGREN 2,008,072

MACHINE FOR SHAPING SHOE UPPERS Filed Aug. 13, 9 5 Sheets-Sheet 5 W Z wM/ Ma Z V fl 4 /N M WV n 6 W WM II u 2 4 m m l 7. -l n w 2 F '1 I J w 42. my T a p13 a 0 .4 0 W 5 M MM. 1 8 a ,m wwww 2 ww I/ WW .r g, R

Patented July 16, 1935 MACHINE FOR SHA PING SHOE IIPUPERSL Eric A.Holrngren, Lynn, Mass, assignor to United Shoe Machinery Corporation,Paterson,

N. J., a corporation 0 Application August 13,

19 Claims.

.This invention relates to machines for use in the manufacture of shoesfor shaping the upper materials, and is herein illustrated in itsapplication to a machine of the same general type as disclosed in Unitedstates Letters Patent No. 1,700,970, granted on February 5, 1929, uponan application of W. C. Baxter, comprising means for shaping over a formand over an insole on the form the heel-end portion of upper materialsbefore the upper and insole are mounted on a last. It is to beunderstood, however, that in various aspects the invention is notlimited to a machine organization or" that particular character.

Machines of the type illustrated in the abovementioned Letters Patenthave been provided heretofore with means for pulling the upperlengthwise relatively to the form over which its heel end is shaped, soas to stretch the upper preliminarily before it is mounted on the lastand also to draw its heel-end portion tightly about the form to assist,in shaping it over the form. Such upper-pulling means is disclosediorexample, in Letters Patent No. 1,913,445, granted upon an earlierapplication of mine on June 13, 1933. The upper-pulling means thereinshown was constructed especially for use in operating on uppers thetoe-end portions of which had been previously molded substantially tothe shape desired for the finished shoes. An object of the presentinvention is to provide upper-pulling means constructed for use onuppers the toe ends of which have not been previously molded, and theinvention is accordingly herein illustrated as embodied means of thatcharacter, although it will be recognized that in some aspects it is notthus limited in its applicability.

The invention, in one aspect, provides'novel means for pulling an upperas above described in such manner that the strains on different portionsthereof are substantially equalized, so that it properly stretchedwithout undesirable distortion of any portion. For this purpose, theconstruction shown comprises upper-pulling means whereby the' forepartof the upper is clamped throughout the greater portion of its width atthe tip line and for substantial distances both forwardly and rearwardlyof the tip line, the upper-engaging faces of the cooperating clampingmembers'being curved laterally of the upper but extending straightlengthwise of the upper to adapt them for use with substantially thesame effect on the uppers of shoes of various styles and sizes. Asillustrated also, one'of the upperclamping members, arranged to engagethe inner face of the upper, is formed to extend throughout f New Jersey1934, Serial No. 739,545

the greater portion of the lcngth'of the forepart I of the. upper and tohold the latter outspread at the rear of the portion engaged by thecooperating clamping member so as to assist in insuring uniformity inthe pulling of the upper.

Further to insure that each upper will be properly stretched withoutdistortion of any portion thereof, and alsoto insure substantialuniformity in the results obtained in pulling different uppers, theinvention provides novel means for positioning the forepart of eachupper inproper predetermined relation to the upper-pulling means and theform. In the construction shown this positioning means comprises jigpins arranged to enter jig holes provided in the margin of the upper atthe opposite sides of the forepart, preferably in locationssubstantially at the ends of the tip seam if the upper includes a toetip, and thus to predetermine the angular relation of the tip line tothe upper-pulling means and the form, the jig pins, as illustrated, alsodetermining the position of the iorepart of the upper laterally. Furtherto assist in positioning the upper properly before it is clamped by theupper-pull- -ing means, thereis provided means for subjecting it to acomparatively light lengthwise pull about the form and also a heightwisepull about one of the clamp members, such means, as illustrated,comprising springs which act thus on the upper through the jig pins.

To facilitate the use of the machine for shaping uppers of differentsizes, and to insure that the uppenpulling means will be properlypositioned to operate in the best manner on such diiferent uppers, theinvention further provides for positioning the upper-pulling meansrelatively to the form in accordance with the size of the upper'to beoperated upon, without special attention on the part of the operator.For shaping the heel ends of uppers of different sizes forms ofcorrespondingly different sizes are preferably utilized, and for thepurpose above described the machine is provided with mechanismcontrolled by each form for positioning the upper-pulling meansinitially at a distance from the form determined by the size of theform. In the construction shown the above-mentioned jig pins aresupported on the upper-pulling means to move therewith, andaccordinglyby such mechanism the jig pins also are variably positionedin accordance with the sizes of different uppers. j

The above and other features of the invention, including alsonovelmeanswhereby the upper is maintained'under tension after it hasbeen pulled and is thereafter released from tension,

and various novel details of construction and combinations of parts willnow be more particularly described by reference to the accompanyingdrawings and pointed out in the claims.

In the drawings, I

Fig. 1 is a view, partly in right-hand side elevation and partly insection, of a portion-of a machine in which the invention is embodied,the parts being shown in'the positions which they occupy in pulling theupper;

Fig. 2 is a view similar to Fig. 1 on a larger scale of portions of thestructure there shown, the structure as a whole, howe ver, beingillustrated for convenience in a position in which the work support ismore nearly vertical than in Fig. 1;

Fig. 3 is a section on the" line IIIIII of Fig. 2;

Fig. 4 shows apcrtion of the structure in front elevation, with partsbroken away; 1 r r Fig 5 is a view in left-hand side elevation of thestructure shown in Fig. 2;

Fig. 6 is a view similar to Fig. 5, but showing the parts in theirinitial positions before the work is presented to the machine; and

Fig. '7 is a section on the line VII-VII of Fig. 6.

Since in its general organization, except as hereinafter described, themachine herein shown is of substantially the same construction asdisclosed in the previously-mentioned Letters Patent, only such parts asit is necessaryto refer to for an understanding of this invention willbe hereinafter mentioned. The machine is provided with a heel-end formIt! which is substan-, tially coterminous lengthwise with the heel-endportion of the upper materials, and with means for shaping or moldingthe heel-end portion of the upper over the form and over an insole onthe form, the upper-shaping means comprising a heel band 12 (Fig. 1) forclamping and shaping the upper about the rear end and the sides of theform and wipers H! for wiping the marginal portion of the heel end ofthe upper inwardly over the insole. There is also provided means (notshown) for driving tacks through holes it in the wipers to fasten themarginal portion of the upper to the insole. The proper relation of theinsolo to the form is determined by pins it which project from the formthrough holes in the insole. The form is detachably supported, as moreparticularly hereinafter described, on a work support comprising acarrier 2t mounted at 22 on the base of the machine for swingingmovement to carry the form with the k from a forwardly in.- clinedwork-receiving position (Fig. 1) into posiwhich it is unnecessary todescribe for an understanding of the present invention. The upper andthe insole are mounted upon the form IF" when the form is in itswork-receiving position, and

to assist in positioning the heel end of the upper materials in proper.relation to the form there is provided a jigging device 2 having meansfor engaging the marginal portion of the upper at the extreme heel endinjig holes provided in the upper, and also means for pressing down therear end of the counter, as disclosed in Letters Patent No. 1,726,833,granted uponanearlier application of mine on September 3, 1929. Thisjigging device is in control of the upper as the latter is subjected toa lengthwise pull in the manner hereinafter described, but is withdrawnfrom its operative position before the work support receives itsrearward swinging movement. For conshown in the above-mentioned LettersPatent No.

1,913,445 and in other respects involves novel features for purposes ofthe present invention. Such pulling of the upper is effected byengagement with its forepart, the construction herein shown being suchas to operate thus by engagement with uppers the toe-end portions ofwhich have not been previously molded. For the purpose in view theforepart of the upper is clamped between members 25 and 28 which actrespectively on the inner and outer faces of the upper materials, bothof these members being supported on an angularly shaped carrier 30having a rearwardly extending lower portion supported by a. rod 52 and ashaft 34 upon the upper ends of substantially parallel links 36 and 38.These links at their lower ends are supported for swinging movements onrods 40 and 42 respectively which are mounted on a bracket 44 supportedfor adjustment about an upright rod 46, this rod being mounted in abracket 48 secured on the front of the work support member 20.Adjustment of the bracket 44 about the rod 46 serves to vary thepositions of the upper-pulling clamp members 26 and 28 laterally of theform [0 for operating respectively upon right and left uppers. Thebracketed is held in proper adjusted position by screws 50, one at each.side thereof (Fig. 4) which engage lugs 52 on the bracket 48.

The clamp member 26 comprises a plate curved laterally of the upper andformed to engage the upper materials throughout the greater portion ofthe width of the forepart, the plate being straight lengthwise of theupper in view of its intended use on uppers of various styles and sizesand being of such length as to extend throughout the greater portion, atleast, of the length of the forepart of the upper so asto maintain thetop of the forepart outspread and thus assist in avoiding unduelocalization of the strain on the upper as it is pulled. This plate issecured to a block 54 fastened to a rearwardly extending arm of thecarrier 30. The clamp member 28 is movable upwardly and downwardly intoand out of clamping relation to the plate 26 and has a. leather facing56 for engaging the upper, this clamp member being curved laterally ofthe upper similarly to itheplate 26. For the purpose of such upward anddownward movement the clamp member 28 is supported on a slide 58 movablealong guideways on the carrier 30, and between the clamp member and theslide there are interposed springs 60 which are yieldable more or lessin the clamping of the upper. The slide 58 is operated by turningmovement of the shaft 34 above referred to as affording a connectionbetween the carrier 30 and the link 38, the shaft having fast thereon acrank arm or 1ever'62 for thus operating it. The shaft 34 has fastthereon a sleeve 63 (Fig. 4) which carries a crank pin54 connected bycurved'links 66 to the slide 58. Movements of the crank arm 62 in.opposite directions are limited by steps 68 and 10 on the carrier 30.

(Fig. When the crank arm 62 is in the position determinedby the stop I0,the crank pin vIi4 is on dead center, so that the parts remain inclamping positions when the operator releases the crank arm. Byreference to Figs. 2 and 5 it will be seen that the clamp member 28,through its leather facing 55, engages theupper at the tip seam and alsofor a'considerable distance forwardly of the tip seam as well as more orless rearwardly thereof to holdthe upper in the vicinity of the tip seamagainst distortion in the upperpulling operation. The member 26,moreover, extends rearwardly a considerable distance beyond thememb er28 to maintain the forepart of the upper outspread laterally at the rearof the clamped portion, so as to assist in avoiding distortion of theupper as it is pulled.

In the construction herein shown the carrier. 30 with its upper-clampingmeans is held initially in an upper-receiving position comparativelynear the form Ii! (Fig. .6) by a spring I2 connected at one end to thebracket 44 and at the other end to the link 38, this positionof thecarrier being determined in accordance with the size of the upper bymeans hereinafter described. The carrier is operated to pull the upperby a pawl-and-ratchet device comprising a plate I4 (Fig. 6) secured tothe link 38 between spaced portions of the link and having ratchet teeth'lii thereon, and pawls I8 and 80 arranged to engage theteeth l6 andpivoted on a pin 82 on a pawl carrier 84 which is mounted to swing onthe rod 42. The pawls I8 and 8d are arranged in staggered relation toeach other for greater precision. For operating the I pawl carrier 84there is provided a crank arm 86 (Figs. 221ml 4) fast on a rock shaft 88mounted in the bracket 44, this rock shaft being provided with a crankpin 9i! connected by a link 92 to the pawl carrier. The pawls i8 and 8!!are controlled respectively by springs 94 and 96 which. tend to swingthem toward the ratchet teeth, the spring 9 1 being connected to a pin98 mounted in a lug on the pawl I8 and extending past the pawl 80.Initially both pawls are held out of engagement with the ratchet teeth(Fig. 6) by a stop I00 adjustably mounted in a bracket I 82 dependingfrom the bracket 44, this stop being arranged to engage a pin I04 on thepawl 80. The stop I59 thus acts directly on the pawl 80, and this pawlby engagement with the pin 98 on the pawl I8 holds the latter alsoretracted from engagement with the ratchet teeth. It will be understoodthat when the operator swings the crank arm 38 forwardly toward him thepin I04 leaves the stop I GI] and the pawls then engage the ratchetteeth and are operative in further movement of the crank arm to swingthe link 38 and thereby impart forward pulling movement to the carrier36. The crank arm 86 carries a spring plunger I I16 arrangedto beengaged initially by a lug )8 (Fig. 2) on the bracket 44 to holdthe'crank arm in its initial position and yieldable to permit theforwardmovement of the crank arm, the latter being shown in' Fig. 2 as havingreceived some forward movement. A stop II!) on the bracket 44 serves toprevent forward movement of the crank arm 86 beyond a predeterminedposition.

The amount of upper-pulling movement imparted to the carrier 30 inpulling each upper by use of the construction herein shown is undercontrol of the operator, and it is contemplated that such upper-pullingmovement of the carrier may be effected in successive steps by repeatedmovements of the crank arm 86. To hold the carrier 3i] againstretractive movement from the position which it assumes in response toany. forward movement of the crank arm 86 there are provided holdingpawls I I2 and H4 (Fig. 6) arranged to engage the teeth I6, these pawlsbeing arranged in staggered relation for greater precision. The pawl H2is fast on a rock shaft I I6 mounted in, the bracketed, and the pawl H4is loose on this; rock shaft. Secured to the rock shaft Ht is abell-crank lever H8 controlled by a spring I25 which tends to swing thepawl H2 toward the ratchet teeth. This pawl carries aleaf spring I22which bears on a pin I28 carried by the pawl I4 and accordingly servesto swing the pawl H4 intoengagement with the ratchet teeth as the pawlH2 is moved into engagement with the teeth by the spring I For swingingthe pawls out of en gagement with the ratchet teeth to permit the returnof the carrier 35 to its initial position there is provided a link I26pivoted at 128 to the hub of the crank arm 52 and provided at its lowerend with a slot 39 in which lies a pin I32 carried by one arm of thebell-crank lever II8. When the parts are in the positions illustratedin. Fig. 6 the pin 32 is at the lower end of the slot I30 and the linkI26 holds the bell-crank lever I I8 in position to maintain the pawl II2 out of engagement with the ratchet teeth, the pawl l 54 being at thesame time held out of engagement with the teeth by contact of the pawl II2 with the pin I24 on the pawl H4. When the crank arm 52 is swung intoposition to eifect the clamping of the upper, the link I26 is carrieddownwardly and releases the bell-crank leveriia was to permit the pawlsH2 and II 4 to be swlmg into engagement with the ratchet teeth, asillustrated in Fig. 5. The pawls are thus rendered effective to maintainthe pull on the upper when the carrier Sll is operatedrby the crank arm86. When the crank arm 52 is swung into position to unclamp the upperafter the completion of the cycle of operations of the machine, thepawls II2 and H4 are returned to their idle positions by the link I26 topermit the carrier 30 to be returned to its starting position by theaction of the spring I2 thereon.

To assist in insuring that each upper will be properly clamped and willbe properly stretched without distortion of any part thereof, havingregard to the correct lines of the finished shoe; the machine is furtherprovided with means for positioning the foreparts of all uppers of thesame size and style uniformly in the same correct rela-.

tion to the heel-end formifl and to the clamp members 25 and 28 beforethe uppers are clamped by these members. This means comprises jig pinsI34jand I 36 (Fig. 3) arranged to enter jig holes provided in theopposite side margins of the forepart of the upper, preferably inlocations substantially at the ends of the tip seam if the upper isprovided with a toe tip, these jig holes being adapted for use later inpositioning the toe end of the upper in proper relation to means forshaping that portion of the upper. .The jig pins I34 and I35 aresupported respectively on arms I38 and Mil (Figs; 2, 4i and 5) which aremounted on a rod M2 extending transversely of the carrier 3!] at theupper end of the latter, the rodbeing supported at its opposite ends onarms I44 and I46 pivotally mounted at M8 and I5!) respectively on thecarrier 38. The arms I38 and I Mlare each separately adjustable aboutthe rod I42, and the arms are secured in adjusted relation to membersI52 and. I54 fast on the rod I42 by V clamp screws I55 and I58 threadedrespectively in the diiferent arms and exteding through slots in themembers I52 and I54. The rod I42 is manna ed to turn in the arms I44 andI46; and mounted in these arms are spring plungers Itil and I62 which byengagement with the members I52 and I54 tend to swing the arms I38 andI46 and the jig pins thereon'in an upward direction. Such upwardmovement of the arms is limited by a bar I64 (Figs. 2 and 3) associatedwith the jig pin I35, as more particularly hereinafter described;

- Fast-on the arm I44 is adepending arm I56 '(Figs. 4, 5 and 6) to thelower end of which is con nected a spring I68, this spring tending toswing the arms I44 and Hit and the rod I42, together with the arms I38and I49 and the jig pins thereon, in a iorward direction away from theform IO. Initially the arm I65 is held b'y-the spring I68 against a stopIlil (Fig. 6) on the carrier 30. The jig pins I34 and I35are thusmaintained by the spring I63 in positions arlittle farther from the formIf! than the jig holes in the upper after the I upper has been mountedon the form, and they are also maintained by the spring plungers I56 andI52 in positions higher than required to enter the jig holes.Accordingly the operator swings the arms I 44 and I45 rearwardly andswirl gs the arms I33 and M5 downwardly before mounting the upper on thejig pins, and when he releases the different arms the jig pins springboth forwardly and upwardly, thereby imparting a light forward pull tothe upper about the form It and also an upward pull to draw it tightover the clamping plate 26 while locating the tip scam in correctrelation to the'form and the clamping means.

The jig pin I34 is preliminarily adjustable in directions lengthwise ofthe upper along a slot I12 (Fig. 6) in the arm I38, and for this purposeis provided with a diametrically enlarged portion I14 (Fig. 3) havingslots cut in its opposite sides to-receive' the portions of the arm I38located at the opposite sides of the slot I12. Threaded on a stem I'IIiextending from the enlarged portion I14 is a nut I73 which by engagementwith the arm I38 clamps the jig pin I34 in adjusted posi tion. Theopposite jig pin I35 is similarly provided with an enlarged portion I83slotted to receive spaced portions of the arm 54% at opposite sides of aslot It'll (Fig. 2) in the arm and having a stem I 82 projectingtherefrom. Mounted on this stem is a bushing I34 whichbears on the outerside of the arm Md and a reduced portion iilIi extending loosely througha slot I88 in the previously mentioned bar I64. Threaded on the stem I82is a nut see which presses the bushing I8 1 against the arm I45 andtherefore clamps the jig pin in adjusted relation to the arm 3% whilepermitting upward and downward swinging movements of the arm relativelyto the 'bar IE4. It will be understood that the limiting at its lowerend portion to a bracket I92 (Figs.- 2

and 4) having rearwardly extending upper and lower arms I94 and Hit, thearm I96 being supported for swinging movement on a rod I98 which ismounted in the bracket 44. Thispermits'the bar IIi I to be swungforwardly through its abovedescribed connections to the arm I 40 whenthe sonata 'carriertllismoved forwardlyto pull the upper.

Mounted for swinging movements on a stud 200 on the bracket 44 is amember 2H2 to which is fastened an upwardly extending arm 204 having alaterally projecting pointer 206 at its upper end. Carried by the armI94 is a pin 208 which extends into a slot 2H! formed in the member 202, so that as the bar I64 is swung forwardly as above described thepointer 2IlB' is swung by the bar in the same' direction. A light spring2I2 connected to the lower end of the member 202 insures that the pm 208will always engage the arm I94 at one side of the slot 2 I for the sakeof greater accuracy in the control of the pointer 206; This pointercooperates with a scale' on spine 2M which is fastened orithesegmentally shaped upper end of a lever 2I6 supported on theabove-mentioned stud 280 and adjustable about the stud. In the lower end'of the lever 25 I is a segmental slot 2I8 through which extends thepreviously mentioned rod I93, and threaded on'the end of this rod is athumb nut 220 which serves to clamp the lower end of the lever 2 i5 inadjusted position against a shoulder on the rod I98. The arm ZIB is thusheld stationary during the pulling of the upper andthe pointer 206 movesrelatively to it. The scale on the plate 2I4 may be graduated toindicate difierent shoe sizes. It is contemplated that in the use ofthis mechanism the operator will pull one upper an amount which in hisjudgment is sufficient for the purpose in view and will then adjust thelever 2 I6 until the pointer 205 is over that mark on the scalecorresponding to the size of that particular upper. Thereafter the lever2H5 will be left in the same position in pulling other uppers, eachupper being pulled by forward movement of the carrier 30 until thepointer 206 is over that mark on the scale which corresponds to the sizeof the upper. This provides for.

substantial uniformity in the stretching of the be located insubstantially the same relation to the clamp members 25 and 28, and inorder that the jig pins I34 and I36 will be so located that they may bereadily connected with the different sized uppers and will subject eachupper to alight forward pull in the manner previously described prior tothe clamping of the upper, the carrier 30 should be located at differentdistances from the form I0 corresponding to differences in sizes of theuppers. Preferably forms II! of different sizes will be used inoperating on the different sized uppers,

and as herein illustrated mechanism controlled by the different forms isprovided for thus variably positioning the carrier 30. Each form In isdetachably mounted on a pin 222 (Fig. 6) at theupper end of a bar 224which mounted in the work carrier 20, a. bushing 226 being providedbetween the pin and the form. A portion 228 of the bar 224 is providedwith straight upwardly extending faces arranged to engage corresponding"faces on the form and thus to prevent the form from turning relativelyto thebar. A lower face 230 at the rear end of the formis supportedonthe upper end face of the work carrier Each form has in its forward enda slot 232 to receive the upper endof one arm- 234 of a bell-crank lever236 which is pivoted at 238 on the bracket 44, this lever having aforwardly extending arm 240 in which is adjustably mounted a screw 242arranged to bear at its lower end on a bracket 244 fastened to the link38. The arm 234 of the bellcrank lever 236 is arranged to bear on eachform III at the bottom of the slot 232 in the form, so that the formdetermines the limit of upward swinging movement of the arm 240 of thelever. The swinging of the link 38 under the influence of the spring I2is accompanied by upward movement of the forward end of the bracket 244,and it will be evident that the link'can be swung rearwardly onlyas faras permitted by contact of the bracket with the screw 242 when the arm240 is at the limit of its upward movement. The different sized formsIII are so constructed that through this mechanism the initial positionof the carrier 30 will be varied in accordance with the size of theform, and accordingly the upper-pulling means willbe variablypositionechunder control of the different forms, as required foroperating on the uppers of different sizes. 7

Each form III is locked in operative position on the bar 24 by ayoke-shaped member 246 (Figs. 6 and '7) slidingly mounted insubstantially horizontal guideways formed in opposite sides of theportion 228 of the bar, the rear end of the member 246 extending into aslot 248 in the form to lock the latter. The member 245 is held yieldingly in looking position by a "spring-pressed. plunger 25%? mounted inthe portion 228 of the bar 224. To'unlock the form when it is desired toremove it, use is conveniently made of the previously mentionedbell-crank lever 236. For this purpose the arm 234 of the bell-cranklever carries a pin 252 projecting from the opposite sides of the armand arranged to engage fingers 254 which project downwardly from amember 256 fastened to the yoke member 246. By depressing the arm 24!!of the bell-crank lever 236 the pin 252 is made to engage the fingers254 and to slide the yoke member 245 forwardly far enough to unlock theform. It will be evident that this can be done only when thecarrier 30of the upperpulling means is in such a forward position asto providesuilicient space between the bracket 244 and the screw 242 to permit thenecessary downward movement of the arm 249. The carrier can be readilymoved to this position by the operator when there is no work in themachine. By reference to Figs. 6 and 7 it will be evident that themember 256 by engagement with the portion 228 of the bar 224 serves tolimit rearward movement of the yoke member 245 an er theinfluence of thespring plunger25ll. 4 I

In the use of the machine, the operator mounts the upper materials aboutthe heel-end form III, a form corresponding to the size of the uppers-tobe operated upon having already been inserted in the machine,and'positions the forepart of the upper between the open clamp members26 and 28. He then swings the arms I44 and I45 rearwardly and the armsI38 and MI! downwardly until the jig pins I34 and I36.are in positionsto have the upper mounted thereon, and after mounting the upper on thepins releases the several arms, whereupon the spring I68 acts throughthe pins to subject the upper to-a light lengthwise pull so as to drawitsheel end closely about the form I I! and the spring plungers I60 andI62 act through the pins to draw the forepartof the upper tightly. aboutthe clamp member 25. By means of the jig pins the tip'seam of the upperisthus located in predetermined angular relation to the clamp membersand in predetermined'relation also to the form I0, and the forepart ofthe'upper, moreover, is positioned'laterally in predetermined relationto the clamp members. With the upper thus held under. light tension bythe jig pins the operator mounts an insole on the form in the'positiondetermined by the pins I8. The'jigging device 24 maythen be utilized toposition the'count'er and the heel end of the upper more accurately, inthe manner disclosed in the previously mentioned Letters Patent No.1,726,833. V I

By swinging the crank arm 62 the operator next moves the lower clampmember 28 into clamping relation to the upper, the pawls I I2 and I I4being released by the movement of the crank arm so that they are swungintooperative relation to the ratchet teeth It. By movements of thecrank arm 86 the operator then operates the upper-clamping means,through the pawl-and: ratchet mechanism controlled by this arm, tosubject the upper toaforward pull, one or the other of the pawls I I2, II4 holding the clamping means in any position to which it is thus moved.In the upper-pulling. operation the pointer 2B5 moves along the scaleplate 2 I4, and the operator terminates the pulling movement when I thepointer arrives at the point on the scale 'corre sponding to the size ofupper. While the upper is thereafter held under tension by theupper-pulling means the operator starts the power operation of themachine, whereupon the shoe support and the upper-pulling means areswung rearwardly and the machineoperates to shape the heel-end portionof the upper materialsover the form and to 'fastenthem to the insole inthe manner disclosed in the previously mentioned Letters Patent. Afterthe shoe support has been swung forwardly again at the completion of theuppershaping'operation, the operator swings the crank arm 62 reverselyto unclamp the upper, thereby also withdrawing the holding pawls I I2, II4 from operative position so that the spring I2. is permitted to movethe upper-pulling means rearwardly to the position determined inaccordancewith the size of the form It! by the bell-crank lever 236.Thereafter the operator disconnects the upper from the jig pins andremoves the shoe materials from the machine. It is contemplated thatthey will preferablynext be presentedvto a machine such as disclosed inLetters Patent'No. 1,968,146 granted upon an application of mine on July31,1934, for shaping the forepart *of the upper, i

'Having de'scribed the invention, what I claim as new'and de ire tosecure by Letters Patent of the United States is:

-1. Ina machine for shaping shoe uppers, the combination with meansforshaping over a form correspondingto a portion only of a last theheel-end portion of an upper the toe end .of which is in unmoldedcondition, of means for subjecting the upper to a' lengthwise pullrelatively tov said form, said upper-pulling means comprisingcooperating upper-clamping members having upper-engaging faces curvedlaterally of the. upper for engagingit over the greater portion of itswidth and arranged to extend straight lengthwise of the uppersubstantial distances both forwardly and rearwardly of the tip line.

2.' In a machine for shaping shoe uppers, the combination with means forshaping over a form corresponding to a portion only of a last the heelend portion of an upper the toe end of which isin unmolded condition, ofmeans for subjecting the upper to a lengthwise pull relatively to saidform, saidupper-pulling means comprising cooperating uppereclampingmembers having up:

per-engaging faces formed to extend straight lengthwise of the upper andcurved laterally of the upper for engaging it over the greater portion'ofv its width, the upper-engagingface of one of said members beingarranged to extend per-pulling meansrcomprising cooperating uppereclamping members arranged to engage the fore: part of the upperrespectively on its inner and outer faces, the member engaging the innerface of the upper having its upper-engaging face formed to extendthroughout the greater portion of the width of the forepart and also toextend straight lengthwise of the upper rearwardly of the other clampingmember for holding the top of the forepart of the upper outspread as thepull is applied;

4. In a machine for shaping shoe uppers, the combination with means forshaping the heele end portion of an upper over a form, of cooperatingclamp members arranged to clamp, the forepart of the upper between themand movable relatively to said form to pull the upperlengthe wise, aretaining device for holding said mem:

V bers against retractive movement, a controlling member movable by theoperator to cause said clamp. members to clamp an upper and thereafterto release the upper, and means for rendering said retaining deviceoperative by the movement of said controlling member in a direction tovcause the clamping of the upper and for rendering it inoperative by themovement of said member in a direction to cause the release of theupper.

5. In a machine for shaping shoe uppers, the combination with means forshaping the heele end portion of an upper over a form, of cooperate ingclamp members arranged to, clamp the fore part of the upper betweenthem, means for mov-' ing said members in a direction lengthwise of theupper to pull the upper relatively to the form, a pawl-and-ratchetdevice for holding said mem, bers against retractive movement and forthus maintaining the upper under tension, a crank arm for moving one ofsaid clamp members rela tively to the other into and out ofupper-clamping position, and connections between said crank arm and thepaWl-and-ratchet device for render: ing said device operative when theupper is clamped by said members and for. rendering it inoperativewhen'the upper is released by said members.

, 6. In a machine, for shapingv shoe uppers, the combination with meansfor shaping the heel:

end portion of an upper over a form,v of cooperate ing clamp membersarranged to, clamp the top of the forepart of the upper between them inthe vicinity of the tip seamand'movable rela-' seam to, said clampmembers before the upper is clamped.

7. In a machine for shaping shoe uppers, the combination with means forshaping the heelend portion of an upper over a form, OfiCOOIJQI atingclamp members arranged to clamp the top. of the forepart of the upperbetween them in the vicinity of the tip seam and movablerelatively tosaid form to pull the upper lengthwise, and members arranged to'engagethe marginal por: tion of the upper in jig holes located substane tiallyat the ends of the tip seam for predetere, mining the angular relationof thentip seam to said clamp. members before the upper is clamped;

8. In a machine for shaping shoe uppers, the combinationwith means forshaping the heel-end portion of an upper over a form, of cooperatingclamp members arranged to 'clampthe top of the forepart of the upperbetween them in the vicinity of the tip seam and movable relatively tosaid form to pull the upperlengthwise, and jig pins arranged to engagethe marginal portion of the upper inrjig holes provided therein at theopposite sides of' the forepart and thereby to predetermine the angularrelation of the tip seam to said clamp members and also the position ofthe forepart of the upper laterally with respect to said members.

9.. In a mac ne or shap s upp r h combination with means for'shaping theheel-' end portion of an upper over a form, of cooperat ing clamp;members arranged to clamp the forepart of the upper between them andmovable relatively to said form. to pull the upper lengthwise, and meansmovable relatively to said clamp members t subi t t e upper t a com a ai ly light lengthwise pull about the form before the upper is clamped bysaidrmembers.

10. In a machine for shaping shoe uppers, the combination with means forshaping the heel- .end portion of an upper over a form, ofcooperete ingclamp members arranged to Glamp the top Q h rampa t f e upper betwe n thm n the vicinity of the tip seam andmovable relatively to said form topull the upper lengthwise,

and spring-controlled members ir-ranged to en eas the upp r n 31s ho e pv th rein ub stantially atthe ends of the tip seam for predeterminingthe angular relation of the tip seam t a p. em ers and e b c n t upperto a comparatively light lengthwise pull is clamped by said portion ofthe upper in jig holes provided there- 7 in at thefoppqsite'sides oi thefore'part and there: by to predetermine the relation of the forepart ofthe upper to said f orm and clamp members, and spring means forsubjecting the upper through said jig pins'to acomparatively light pullto. position in proper relation to said form and cl m embe s. b we he uper i da by sa m e a a j 12. In a machine for shaping shoe uppers, thecombination with mean s for shaping the heelend portion of an upper overa term, of cooperating clamp member's arranged to engage the forepart ofthe upper respectively on its inner and outer faces and movablerelatively to said form to pull the upper lengthwise, and means forpulling the forepart of the upper heightvvise abou th clam memb r en ain its inner We before the 1 1222 is la ped 13. In a machine for shapingshoe uppers, the

end portion of an upper over a form, of cooperating clamp membersarranged to clamp the top of the forepart or" the upper between them inthe vicinity of the tip seam and movable relatively to said form to pullthe upper lengthwise, jig pins arranged to engage the upper in jig holesprovided ther in in locations substantially at the ends of the tip seamfor predetermining the angular relation of the tip seam to said clampmembers, and spring means for moving said jig pins in the directiontoqpull the forepart of the upper heightwise about one of said clampmembers before the upper is clamped.

14. In a machine for shaping shoe uppers, the combination with means forshaping the heelend portion of an upper over a form, of cooperatingclamp members arranged to clamp the top of the forepart of the upperbetween them and movable relatively to said form to pull the upperlengthwise, and means constructed andarranged to act by engagement withthe marginal portion of the upper at the opposite sides of the forepartto subject the upper to a comparatively light pull lengthwise about theform andheightwise about one of said clamp members before the upper isclamped by said members.

15. In a machine for shaping shoe uppers, the combination with means forshaping the heelend portion of an upper over a. form, of cooperatingclamp members arranged to clamp the top of the forepart of the upperbetween them in the vicinity of the tip seam and movable relatively tosaid form to pull the upper lengthwise, jig pins arranged to engage theupper in jig holes provided therein substantially at the ends of the tipseam to predetermine the relation of the forepart of the upper to saidclamp members, and spring means arranged to move said jig pins indirections both lengthwise and heightwise of the upper to pull itlightly about the form and also to pull its forepart lightly about oneof said clamp members before the upper is clamped by said members.

16. In a machine for shaping shoe uppers, the combination with means forshaping the heelend portion of an upper over a form, of cooperatingclamp members arranged to clamp the forepart of the upper between themand movable relatively to said form to pull the upper 1engthwise, andjig pins arranged to engage the marginal portion of the upper in jigholes provided therein at the opposite sides of the forepart and therebyto predetermine the relation of the forepart of the upper to said formand clamp members, said jig pins being movable with said clamp membersin the pulling of the upper.

1'7. In a machine for shaping shoe uppers, the combination with meansfor shaping the heel ends of uppers of different sizes over heel-endforms of correspondingly diiferent sizes, of upper-pulling meansarranged to engage the fore part of each upper and movable to pull theupper lengthwise relatively to the form over which its heel end isshaped, and means arranged to be controlled by each heel-end form forpositioning said upper-pulling means initially at a distance from theform determined by the size of the form.

18. In a machine for shaping. shoe uppers, the combination with meansfor shaping the heel ends of uppers of different sizes over heel-endforms of correspondingly different sizes, of upper-pulling meansarranged to engage the forepart of each upper and movable to pull theupper lengthwise relatively to the form over which its heel end isshaped, a spring tending to move said upper-pulling means toward theform in a direction lengthwise of the upper, and a device arranged to becontrolled by each heel-end form and to determine the limit of movementof the upper-pulling means toward the form in accordance with the sizeof the form.

19. In a machine for shaping shoe uppers, the combination with means forshaping the heel ends of uppers of different sizes over heel-end formsof correspondingly different sizes, of upper-pulling means'arranged toclamp the forepart of each upper and movable to pull the up perlengthwise relatively to the form over which its heel end is shaped,members mounted for movement with said upper-pulling means and arrangedto engage the upper in jig holes provided therein to position the upperinitially in proper relation to the upper-pulling means, and a devicemovable to different positions in ac-- cordance with differences in thesizes: of differ ent forms and arranged to act as a stop to limitmovement of said upper-pulling means and members toward the form andthus to determine their initial positions in accordance with the sizeofthe form.

ERIC A. HOLMGREN.

